2 ST9500C Programmer Installation Guide 3
WIRING CONNECTIONS
ST9500 Internal Wiring
Notes
1. The ST9500 is a Class II (double insulated) device. A parking
terminal is provided for earth wiring continuity, if required.
2. In the wiring schematics below, connections are shown to basic
boilers only. For wiring connections to Pump over-run boilers
refer to the boiler manufacturers instructions or to Honeywell for
assistance.
3. Wiring schematics are shown for 2-Zone control using ST9500C and
2 Zone-valves. Please refer to Honeywell for other wiring and control
options.
Control using Zone-valves: Wiring to Mechanical Thermostats
ADDITIONAL PRODUCT FEATURES
Installer Mode
The ST9500 has a special Installer Mode where some features can be adjusted to suit user lifestyle or preferences – these are called installer
Parameters, and are listed in the table below, along with a description of the options that are possible.
INSTALLER PARAMETER Parameter
Number
LoT™ Display
Description
Default Value Range of
Values
Description [LoT™ Display Description]
24hr or am/pm clock display 1 CLOCK MODE 12 12, 24 12 = am/pm display,
24 = 24hr display
[AM-PM]
[24 HOUR]
Configure backlight operation
(backlight consumes no
additional energy)
2 BACKLIGHT 2 0, 1, 2 0 = off,
1 = on if button pressed,
2 = on continuously
[NO B-LIGHT]
[B-L DELAY]
[B-LIGHT ON]
Enable/disable auto time
change
3 AUTO TIME 1 0, 1 0 = disabled,
1 = enabled
[NO CHANGE]
[TIME CHANGE]
1-day or 5/2-day or 7-day
operation
4 UNIT TYPE 7 1, 5, 7 1 = 1-day operation,
5 = 5/2-day operation,
7 = 7-day operation
[1-DAY]
[5-2 DAY]
[7-DAY]
Number of ON/OFFs per
day
5 ON PERIODS 3 2, 3 2 = 2 on/offs per day,
3 = 3 on/offs per day
[2 PER DAY]
[3 PER DAY]
Select default time
programme
6 DEF PROFILE A A, b, C A = standard,
b = at home,
C = economy
[PROFILE A]
[PROFILE B]
[PROFILE C]
* Reset all parameters 8 PROG RESET 1 0, 1 0 = do not reset
1 = default parameters
[RESET OFF]
[RESET ON]
To Enter Installer Mode:
a.
Ensure the slider is in the RUN position, then press
and hold the and buttons together for 8
seconds. Ignore the ‘NOT VALID’ that is displayed
for a few seconds. The message ‘SET UP MENU’ will
show briefly, followed by ‘SET INSTALLER OK ?’
b. Press the button to take you into the Installer Mode
Parameter Menu.
c. Parameter 1 is now available to change. This is to
allow you to change the clock format from 12 hour
AM/PM to 24 hour. At every step, the LoT™ Display
will inform you what the parameter means and what
option you have selected. The parameter number is
shown on the display separated by a colon from the
parameter value.
d. You can change the parameter value by pressing the
or buttons. At this point the description in the
LoT™ Display will change and the parameter value
will flash. If you press the value will stop flashing
and will be saved for use.
e. Press to move to the next parameter available
for editing. The parameter number will change
accordingly.
f. Keep pressing to step around the list of parameters,
and use or buttons to change the parameter
value.
g. Any parameter changes that have been confirmed
with the button will be saved and used.
* this parameter by default has a value of 1, unless you change any other parameter, when it will change to 0. Set it to 1 to reset all parameters back to defaults.
LoT™ Display
Parameter
Number
Parameter
Value
or
Clock
N L 1 2 3 4
3 AMPS MAX
Zone 1
OFF
Zone 1
ON
Zone 2
OFF
Zone 2
ON
N
L
OFF ON OFF ON
To Exit Installer Mode:
You can exit Installer Mode at any time by moving the slider to the next position and then back again to RUN.
Note: Installer Mode will exit automatically after 10 minutes if the slider is not moved.
230V~
50...60Hz
Clock
N L 1 2 3 4
3 AMPS MAX
N
L
OFF ON OFF ON
230V~
50...60Hz
1 2 3
ST9500
1 2 3
T6360B (ZONE 2) T6360B (ZONE 1)
PUMP
N L
BOILER
N L
V4043H (ZONE 2)
G/Y BL BR GR O
M
V4043H (ZONE 1)
G/Y BL BR GR O
M
Control using Zone-valves: Wiring to Digital Thermostats
Clock
N L 1 2 3 4
3 AMPS MAX
N
L
OFF ON OFF ON
230V~
50...60Hz
A B
ST9500
A B
T6620B (ZONE 2) T6620B (ZONE 1)
PUMP
N L
BOILER
N L
V4043H (ZONE 2)
G/Y BL BR GR O
M
V4043H (ZONE 1)
G/Y BL BR GR O
M
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